Herbert H. Uhlig

Herbert Henry Uhlig (3 March 1907 – 3 July 1993) was an American physical chemist who studied corrosion.

He received his B.S. in chemistry from Brown University in 1929 and his Ph.D. in physical chemistry in 1932 from MIT under John Kirkwood and Frederick Keyes(1885 - 1976). He worked briefly as a biochemist at the Rockefeller Institute for Medical Research (now named The Rockefeller University) and then the Lever Brothers Company before returning to MIT in 1936 as a research associate in the Corrosion Laboratory. This was interrupted by World War II, during which time he joined the staff of the Research Laboratory at the General Electric Company to study metal corrosion on aircraft and other military equipment. However, he returned to MIT in 1946 as an associate professor of metallurgy and director of the Corrosion Laboratory. Uhlig became a full professor in 1953 and retired in 1972. Afterwards, he became a visiting professor for institutions around the world, including some in Massachusetts, Australia, and the Netherlands.

He died in 1993.

Uhlig's research interests were broad and included the study of passivation of transition metals, pitting and stress corrosion, hydrogen embrittlement, metal surface properties, corrosion fatigue, and corrosion-resistant alloys. In the area of passivity, Uhlig showed that the chemisorbed oxide layer is too thin to serve as an atomic diffusion barrier in electrochemical corrosion, which was the commonly held view at the time and, rather, functions to decrease the rate of the electron transfer process (oxidation-reduction reaction). He also concluded that the minimum ratio of metals corresponding to passivity in binary alloys tends to be retained in higher-order ternary and quaternary systems. For pitting and stress corrosion, he confirmed the presence of critical potentials necessary to initiate corrosion. Uhlig served as editor of the still widely referenced "Corrosion Handbook," which was first published in 1948, and he authored the first edition of the textbook "Corrosion and Corrosion Control: An Introduction to Corrosion Science and Engineering" in 1963. Canadian metallurgical engineer R. Winston Revie was the editor for subsequent editions of each book.

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